package protocol.qotm;

import io.netty.bootstrap.Bootstrap;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import io.netty.channel.ChannelOption;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.DatagramPacket;
import io.netty.channel.socket.nio.NioDatagramChannel;
import io.netty.util.internal.SocketUtils;

import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;

public class QuoteOfTheMomentClient {

    static final int PORT = Integer.parseInt(System.getProperty("port", "7686"));

    public static void main(String[] args) throws Exception {
        NioEventLoopGroup group = new NioEventLoopGroup();

        try {
            Bootstrap b = new Bootstrap();
            b.group(group)
                    .channel(NioDatagramChannel.class)
                    .option(ChannelOption.SO_BROADCAST, false)
                    .handler(new QuoteOfTheMomentClientHandler());

            Channel ch = b.bind(0).sync().channel();

            ch.writeAndFlush(new DatagramPacket(Unpooled.copiedBuffer("QOTM", StandardCharsets.UTF_8),
                    SocketUtils.socketAddress("255.255.255.0", PORT))).sync();

            if (!ch.closeFuture().await(5000)){
                System.out.println("QOTM request timed out");
            }
        } finally {
            group.shutdownGracefully();
        }
    }
}
